Application of VARPRO to Ambient Mode Estimation

Project Status: 

Research into the application of a VARPRO-based approach to modal analysis of ambient data from the power grid may improve on existing methods to estimate system damping. This would increase situational awareness of potential system instabilities.  Initial exploratory work has involved a first pass at recently acquired data, which shows promising results that warrant further investigation.  Direct application of VARPRO curve-fitting provides excellent results compared to brake-test ringdown. The research will need to address practical issues with automating the algorithm with a goal of real-time implementation.

Related Publications

Lesieutre, Bernard C, and Sandip Roy. "A system response persistence measure for use in ambient data monitoring." 2017 North American Power Symposium (NAPS). Morgantown, WV: IEEE, 2017.
Lesieutre, Bernard C, and Sandip Roy. "Calculating and calibrating a persistence measure for use in monitoring power system vulnerability." 2017 55th Annual Allerton Conference on Communication, Control, and Computing (Allerton). Monticello, IL, USA: IEEE, 2017.